參數(shù)資料
型號: TPS40131RHBR
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PQCC32
封裝: GREEN, PLASTIC, QFN-32
文件頁數(shù): 34/40頁
文件大?。?/td> 940K
代理商: TPS40131RHBR
www.ti.com
ELECTRICAL CHARACTERISTICS
SLVS635 – FEBRUARY 2007
TA = -40°C to 85°C, VIN = 5.0 V, VDD = 12.0 V, RRT = 64.9 k, TJ = TA (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIN5 INPUT SUPPLY
VIN
Operating voltage range, VIN5
4.5
5.0
5.8
V
IIN
Shutdown current, VIN5
EN/SYNC = GND
5
μA
Operating current
Outputs switching, No load
1.0
2.0
mA
BP5 INPUT SUPPLY
Operating voltage range
4.3
5.0
5.5
V
IBP5
Operating current
Outputs switching, no external FETs
3
5
mA
Turn-on BP5 rising
3.90
4.25
4.45
V
Turn-off hysteresis(1)
150
mV
VDD
INPUT SUPPLY
4.5
28
V
BP8VBP8
Output Voltage
Internal load < 1 mA, No external load
7.5
V
OSCILLATOR/SYNCHRONIZATION
RT = 64.9 k
355
400
455
Phase frequency accuracy
RT = 64.9 k, 0°C ≤ TJ ≤ 85°C
360
400
440
kHz
Phase frequency set range(1)
100
1200
Synchronization frequency
800
9600
range(1)
Synchronization input
VBP5/2
V
threshold(1)
EN/SYNC
Enable threshold
Pulse width > 50 ns
0.8
1.0
1.5
V
Voltage capability(1)
VBP5
PWM
Maximum duty cycle per
87.5%
channel(1)
Minimum duty cycle per
0
channel(1)
VREF
Voltage reference
ILOAD = 100 uA
0.687
0.700
0.709
V
ERROR AMPLIFIER
Voltage feedback, trimmed
VFB
0.691
0.700
0.705
(including differential amplifier)
Voltage feedback, without
V
VFB
0.687
0.700
0.710
differential amplifier
CMRR
Input common mode range(1)
0.0
0.7
2.0
Input bias current
VFB = 0.7 V
55
200
nA
Input offset voltage
0
V
ISRC
Output source current
VCOMP = 1.1 V, VFB = 0.6 V
1
2
mA
ISINK
Output sink current
VCOMP = 1.1 V, VFB =VBP5
1
2
VOH
High-level output voltage
ICOMP = -1 mA
2.5
2.9
V
VOL
low-level output voltage
ICOMP = 1 mA
0.5
0.8
GBW
Gain bandwidth(1)
3
5
MHz
AVOL
Open loop gain(1)
60
90
dB
(1)
Ensured by design. Not production tested.
4
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